@rooster Not actually great advice: expiration dates on OTC meds are set to promote stock turnover, not reflect a magic date at which the drug suddenly turns to chalk. In reality, most tablet-form meds stored in cool dry conditions degrade very slowly and are still effective, albeit possibly less than maximum efficacy, a decade or more later.

https://www.drugs.com/article/drug-expiration-dates.html

(Note: I'm a retired pharmacist, no longer qualified, and this is not professional advice.)